Why I Think Dean Winchester Has Nyctophobia

Dean is a character from the best TV show ever made (Supernatural). I've decided to share my 2 reasons to believe that he's afraid of the dark. 

Reason 1: In an episode from season 1 (I think it's episode 1) he tells Sam (his brother) that he *should be* afraid of the dark.

Reason 2: In an episode from season 13 he seems nervous when he has to put his hand in a dark area and he didn't know what was there.